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2 Sheets-Sheet 17 J. W. ANDERSON. Extension Bow-Iron for Carriages.

Patented Mar. 30,1880.

2 Sheets--Sheet 2.

J. W. ANDERSON. Extension. Bow-Iron for Garriages.

Patented Mar. 30, 1880.

N.FEFER3. FHOTO-UTHQGRAFHER, WASHINGTON. D. c.

JOHN W. ANDERSON, OF LANCASTER, PENNSYLVANIA.

EXTENSION BOW-IRON FOR CARRIAGES.

SPECIFICATION forming part of Letters Patent No. 226,015, dated March30, 1880. Application filed September 4, 1879.

To all whom it may concern:

Be it known that I, J OHN W. ANDERSON, of Lancaster, Pennsylvania, haveinvented a new and useful lmprovement in Extension Bowlrons forCarriages, 850., of which the following is a specification.

My invention relates to improvements in that class of bows orcross-pieces of carriagepoles which are provided with adjustableshackles for connection to the axle-clips of vehicles and the mainobjects of my invention are to obtain increased adjustability of theshackles, to so connect them to bars 011 the how or cross-piece as toprevent accidents, and to provide the shackles with eyes which willreadily accommodate themselves to the clips on the axle. v

In the accompanying drawings, Figure 1 is a plan view of the attachmentfor the bows of carriage-poles; 2, a front view, partly in section;Figs. 3, 4, and 5, plan views of different parts of the attachment; Fig.6, a perspective view of part of Fig. 1 5 Fig. 7, a sec tionalperspective view of different parts of the attachment separated from butshowing their relation to each other; Fig. 8, a vertical section on theline 1 2, Fig. 1; Fig. 9, a perspective view of one of the bolts; andFig. 10, a general view, drawn to a reduced scale, of part of the poleof a vehicle with bow attached.

The attachment'with which each end of the bow is provided is composed offive principal parts-namely, the main bar A, the coverplate B of thesame, the shackle D, the plate E, and bolts F.

The main bar A has opposite vertical flanges a a, between which isfitted the end of the bow G of the pole, the bow extending as far as thecross-piece b of the bar A.

The cover-plate B fits snugly to the top of the main bar A, as shown inFig. 8, and may be secured thereto by any suitable fastenin gs,set'screws (I (Z, for securing the attachment to the cross-piece G, anda set-screw at 6, being used in the present instance for attaching thecover-plate to the main bar.

I prefer to form on the flanges a a of the said main bar lugs c atintervals, and to form notches in the cover plate for receiving thelugs, so that the proper adjustment of the plate may be assured.

The shackle D is so adapted to a recess in the under side of the mainbar that it can be adjusted longitmlinally therein, and the slottedportion of the shackle is confined between the bar A and the plate E,which has a recess in the top adapted to the shackle, and which isoverlapped by the lower flanges, a a, of the main bar. The properlateral position of the shackle in respect to the bar and plate and ofthe latterin respect to each other is assured by the overlapping flangesa a of the main bar.

It will be observed on reference to Fig. 3 that partitions f, f, and fextend across the longitudinal recess in the top of the main bar. Theseare for the purpose of strengthening the bar at the point where holes hit pass through both flanges a a for the bolts, which secure the usualdiagonal stays shown in the general view, Fig. 10. These partitions arenot indispensable but I prefer them because they serve the additionalpurpose of counteracting the effect which theslots for receiving thebolts F i would otherwise have to weaken the bar.

There are three slots, m, m, and m, in the main bar, and each slot isenlarged at one point, a, for the free admission of the threadedportions of the stems ofthe bolts. In like manner and for a like purposethere is an enlargement,p, of the slot 12 in the shackle, and a similarenlargement, q, of the slot q in the plate E.

It will be observed on reference to Fig. 9 that the bolts Fare ofpeculiar character, the head 10 being large enough to prevent itspassage through any part of either of the slots in the main bar theportion wof the stem nearest the head being flattened and free to slidein the slots, the threaded portion 3 being larger in diameter than theportion 00 is thick, and the enlargement of each slot in the main barbeing of sufficient size to freely admit the threaded portion of thestem.

Supposing two bolts be used, as in the present case, it will benecessary, in order to fit the several parts of the attachment togetherand introduce the bolts to their places, to proceed as follows: First,the main bar A, shackle D, and plate E must be so adjusted in respect toeach other that the enlargement a of the slot m in the bar, theenlargement p of the slot 19 in the shackle, and the enlargement q ofthe slot q in the plate E will coincide with each other, when the stemof one of the bolts is passed through the enlargements, after which theshackle and plate E are moved in the direction of the arrow until theenlarged portions 1) and q of their slots coincide with the enlargementn ofthe slot m of the main bar, when the stem of another boltis passedthrough these enlargements of the slots, after which the shackle may beadjusted on the main bar to any position which that of the clip on theaxle may demand.

The important end attained by this mode of fastening the shackle to themain bar is the prevention of accidents should the nuts of the boltsbecome loose and detached, in which case, although the parts will beloosened, the shackle cannot be detached, as the bolts are confined inone direction by the head and in the other direction by the shoulder t,Fig. 8, formed on the bolt where the flattened portion of the stem meetsthe threaded portion.

It will be seen that, as the bolts are movable in the slots, an extendedadjustment of the shackle D is obtained.

The inward adjustment of the shackle may be extended by removing thebolt previously in the slot on to the slot 021?, this adjustment beingsometimes demanded by the position of the clips on a sleigh. In mostcases, however, all the adjustment necessary can be obtained byconfining the bolts, one to the slot at and the other to the slot m.

On referring to Fig. 6 it will be seen that the eye M on the shackle forconnection to the clip on the axle, instead of forming a rigid part ofthe shackle, as usual, is hinged horizontally to the same by a pin, N.The importance of this will be understood when it is remembered that theshackle is made adjustable on a curve. No matter what position it may beadjusted to, the eye 11 will turn on its pin until it is accommodated tothe clip.

It may be remarked that the cover-plate B is not an indispensableadjunct to the device as regards the accomplishment of any otherfunction than that of impartinga proper finish and a neat appearance tothe'attachment. The plate is intended to be a permanent part of the barA, and is not removed even when the bolts have to be withdrawn and theshackle detached. When this becomes necessary the bolts may be raisedthrough openings in the plate after a proper adjustment of the shackleand plate E, so that there may be a proper coincidence of the slots, asdescribed above, the openings in the cover-plate being large enough forthe free passage of the heads of the bolts, and being closed-byscrew-plugs a, Fig. 8, which are never detached, excepting for thepurpose last described.

[ claim as my invention- 1. The combination of the slotted bow A, havingat its inner end a socket for receiving one end of the bow ofacarriage-pole, the longitudinally-slotted shackle D, thelongitudinallyslotted plate E, and bolts for securing the said platestogether independently of the wooden bow, all substantially as setforth.

2. The combination of the bar A, shackle D, and plate E with boltsconfined vertically, but at liberty to slide in the slots of the saidbar, shackle, and plate, substantially as specified.

3. The bar A, shackle D, and plate E, all having slots withenlargements, in combination with bolts F,constructed in respect to thesaid slots and their enlargements substantially as described.

4. The combination of the bar A, its flanges a a, and the bolts with acover-plate, B, attached to the bar, and having openings through whichthe bolts can be withdrawn, all substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN WESLEY ANDERSON.

WVitnesses:

J AOOB HALBAGH, GEORGE BOWMAN.

